body {
    background: linear-gradient(180deg, #0f172a 0%, #10243d 30%, #f8fafc 85%);
    color: #0f172a;
    font-family: 'Open Sans', sans-serif;
}

header nav {
    padding: 1.5rem 2rem;
    grid-template-rows: auto 0px;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.learn-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: clamp(6.5rem, 10vw, 8.5rem) 1.5rem 4.5rem;
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.learn-hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 2.5rem;
    padding: 2.75rem 3rem;
    border-radius: 2rem;
    background: linear-gradient(135deg, rgba(17, 33, 60, 0.98), rgba(40, 141, 199, 0.82));
    color: #e2e8f0;
    box-shadow: 0 28px 50px rgba(9, 17, 34, 0.45);
    overflow: hidden;
}

.learn-hero::after {
    content: '';
    position: absolute;
    top: -20%;
    right: -25%;
    width: 60%;
    height: 60%;
    background: radial-gradient(circle at center, rgba(148, 197, 255, 0.45), transparent 65%);
    opacity: 0.35;
}

.learn-hero__content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.learn-hero__eyebrow {
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(226, 232, 240, 0.7);
}

.learn-hero__content h1 {
    margin: 0;
    font-size: clamp(2.6rem, 3.8vw, 3.2rem);
    font-weight: 700;
}

.learn-hero__content p {
    margin: 0;
    font-size: 1.05rem;
    line-height: 1.7;
    color: rgba(226, 232, 240, 0.9);
}

.learn-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

.learn-search {
    position: relative;
    flex: 1 1 280px;
    max-width: 420px;
}

.learn-search__icon {
    position: absolute;
    top: 50%;
    left: 1rem;
    transform: translateY(-50%);
    font-size: 1.1rem;
    color: rgba(226, 232, 240, 0.7);
}

#blogSearch {
    width: 100%;
    padding: 0.9rem 1.1rem 0.9rem 2.75rem;
    border-radius: 0.85rem;
    border: 1px solid rgba(148, 197, 255, 0.35);
    background: rgba(15, 23, 42, 0.5);
    color: #f8fafc;
    font-size: 1rem;
    box-shadow: 0 18px 35px rgba(9, 17, 34, 0.35);
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

#blogSearch::placeholder {
    color: rgba(226, 232, 240, 0.6);
}

#blogSearch:focus {
    outline: 2px solid rgba(148, 197, 255, 0.85);
    border-color: rgba(148, 197, 255, 0.85);
    box-shadow: 0 22px 45px rgba(9, 17, 34, 0.45);
}

.learn-hero__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.4rem;
    border-radius: 0.85rem;
    background: linear-gradient(135deg, #fef08a 0%, #facc15 100%);
    color: #0f172a;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 20px 40px rgba(250, 204, 21, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.learn-hero__cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 24px 48px rgba(250, 204, 21, 0.45);
}

.learn-hero__badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.learn-hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.5rem 0.9rem;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.55);
    color: #f8fafc;
    font-size: 0.85rem;
    font-weight: 600;
}

.learn-hero__card {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    padding: 2rem;
    border-radius: 1.5rem;
    background: rgba(15, 23, 42, 0.78);
    border: 1px solid rgba(148, 197, 255, 0.25);
    box-shadow: 0 22px 45px rgba(9, 17, 34, 0.45);
}

.learn-hero__card h2 {
    margin: 0;
    font-size: 1.35rem;
    font-weight: 600;
    color: #f8fafc;
}

.learn-hero__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 1rem;
}

.learn-hero__list li {
    padding: 0.85rem 1rem;
    border-radius: 1rem;
    background: rgba(15, 23, 42, 0.55);
    color: rgba(226, 232, 240, 0.9);
    line-height: 1.6;
}

.learn-hero__note {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.6;
    color: rgba(226, 232, 240, 0.75);
}

.learn-collections {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.learn-collections__header h2 {
    margin: 0 0 0.75rem;
    font-size: clamp(2.25rem, 3vw, 2.6rem);
    font-weight: 700;
    color: #0f172a;
}

.learn-collections__header p {
    margin: 0;
    max-width: 720px;
    color: #475569;
    font-size: 1.05rem;
    line-height: 1.7;
}

.learn-collections__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.75rem;
}

.collection-card {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 2rem;
    border-radius: 1.5rem;
    background: linear-gradient(150deg, rgba(248, 250, 252, 0.95), rgba(226, 232, 240, 0.9));
    border: 1px solid rgba(148, 163, 184, 0.22);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.12);
}

.collection-card__icon {
    font-size: 2rem;
}

.collection-card h3 {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 600;
    color: #0f172a;
}

.collection-card p {
    margin: 0;
    color: #475569;
    line-height: 1.7;
}

.learn-library {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.learn-library__header h2 {
    margin: 0 0 0.75rem;
    font-size: clamp(2.25rem, 3vw, 2.6rem);
    font-weight: 700;
    color: #0f172a;
}

.learn-library__header p {
    margin: 0;
    max-width: 720px;
    color: #475569;
    font-size: 1.05rem;
    line-height: 1.7;
}

#blog-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.mainBlogs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.blog-post {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    padding: 1.75rem;
    border-radius: 1.25rem;
    background: linear-gradient(160deg, rgba(15, 23, 42, 0.85), rgba(40, 141, 199, 0.65));
    border: 1px solid rgba(148, 197, 255, 0.25);
    color: #f8fafc;
    box-shadow: 0 22px 45px rgba(9, 17, 34, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.blog-post:hover {
    transform: translateY(-6px);
    box-shadow: 0 28px 55px rgba(9, 17, 34, 0.45);
}

.blog-post img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: 1rem;
}

.blog-content {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.blog-content h2 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: #f8fafc;
    text-align: left;
}

.blog-content p {
    margin: 0;
    color: rgba(226, 232, 240, 0.85);
    line-height: 1.6;
}

.blog-content a {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.55rem 1.1rem;
    border-radius: 0.85rem;
    background: linear-gradient(135deg, #fef3c7 0%, #facc15 100%);
    color: #0f172a;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 18px 35px rgba(250, 204, 21, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.blog-content a:hover {
    transform: translateY(-2px);
    box-shadow: 0 22px 45px rgba(250, 204, 21, 0.45);
}

.loading,
.error-message {
    grid-column: 1 / -1;
    padding: 1rem 1.5rem;
    border-radius: 1rem;
    text-align: center;
    font-weight: 600;
}

.loading {
    background: rgba(15, 23, 42, 0.1);
    color: #1e293b;
}

.error-message {
    background: rgba(220, 38, 38, 0.1);
    color: #b91c1c;
}

.learn-cta {
    padding: 2.75rem 3rem;
    border-radius: 2rem;
    background: linear-gradient(140deg, rgba(40, 141, 199, 0.9), rgba(15, 23, 42, 0.95));
    color: #e2e8f0;
    text-align: center;
    box-shadow: 0 28px 55px rgba(9, 17, 34, 0.4);
}

.learn-cta h2 {
    margin: 0 0 1rem;
    font-size: clamp(2.2rem, 3vw, 2.6rem);
    font-weight: 700;
}

.learn-cta p {
    margin: 0 0 1.5rem;
    font-size: 1.05rem;
    line-height: 1.7;
    color: rgba(226, 232, 240, 0.9);
}

.learn-cta__actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

#subscribeBtnMailingList {
    border: none;
    border-radius: 0.85rem;
    padding: 0.85rem 1.5rem;
    background: linear-gradient(135deg, #fef08a 0%, #facc15 100%);
    color: #0f172a;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 20px 40px rgba(250, 204, 21, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

#subscribeBtnMailingList:hover {
    transform: translateY(-2px);
    box-shadow: 0 24px 48px rgba(250, 204, 21, 0.45);
}

.learn-cta__secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.5rem;
    border-radius: 0.85rem;
    border: 1px solid rgba(226, 232, 240, 0.45);
    color: #e2e8f0;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.2s ease, color 0.2s ease;
}

.learn-cta__secondary:hover {
    background: rgba(15, 23, 42, 0.35);
    color: #ffffff;
}

@media (max-width: 1024px) {
    .learn-main {
        padding: clamp(6rem, 12vw, 7.5rem) 1.5rem 4rem;
    }

    .learn-hero {
        grid-template-columns: 1fr;
    }

    .learn-hero__card {
        order: -1;
    }

    .learn-collections__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .learn-main {
        padding: 6rem 1.25rem 3.5rem;
    }

    .learn-collections__grid {
        grid-template-columns: 1fr;
    }

    .learn-hero {
        padding: 2.5rem 2rem;
    }

    .learn-hero__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .learn-cta {
        padding: 2.5rem 2rem;
    }
}

@media (max-width: 520px) {
    .learn-hero__badge {
        width: 100%;
        justify-content: center;
    }

    .blog-post {
        padding: 1.5rem;
    }
}